Amarine biologist will collect data regarding the length and weight of each of 50 trout caught and released at five different locations in a given lake. which type of visual representation would best represent the marine biologist’s data?

a bar graph comparing the largest trout caught at each of the five locations

a scale drawing of all trout caught regardless of location

a circle graph comparing the number of trout caught at each of the five locations

a scatterplot comparing the length and weight of each trout regardless of location

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

i belive those are the ones that are under 90 degreese.